SDK 使用指南(Android P) Contents
02 (2020-11-04) Amlogic Proprietary and Confidential iv
Copyright © Amlogic. All rights reserved.
6.7 GPIO ............................................................................................................ 26
6.7.1 Uboot 下控制 GPIO .............................................................................. 26
6.7.2 Kernel 下控制 GPIO .............................................................................. 28
6.8 I2C ................................................................................................................ 36
6.8.1 A311D I2C 接口介绍 ............................................................................ 36
6.8.2 I2C 的配置 ............................................................................................ 36
6.8.3 I2C 调试命令 ........................................................................................ 38
6.9 UART ........................................................................................................... 40
6.9.1 简介 ....................................................................................................... 40
6.9.2 串口 ....................................................................................................... 40
6.9.3 uart 配置及调试 .................................................................................... 41
6.10 SPI (SPICC) ................................................................................................. 42
6.10.1 Uboot 下配置......................................................................................... 42
6.10.2 Kernel 下配置 ........................................................................................ 48
6.11 USB Device 与 Host 工作模式切换 .............................................................. 51
6.11.1 配置为 OTG ................................................................................... 52
6.11.2 配置为 host only ............................................................................ 52
6.11.3 配置为 device only ......................................................................... 52
6.12 WIFI/BT 配置 ................................................................................................ 52
6.12.1 WIFI/BT 配置......................................................................................... 52
6.12.2 BT 的硬件配置 ...................................................................................... 55
6.13 Ethernet 基本配置 ........................................................................................ 55
6.13.1 简介................................................................................................ 55
6.13.2 Ethernet 在 kernel 中的配置 ................................................................ 55
6.13.3 Uboot 中的配置 .................................................................................... 56
7. 系统 ............................................................................................................................. 57
7.1 DDR ............................................................................................................. 57
7.1.1 DDR 频率的修改 ................................................................................... 57
7.1.2 DDR 容量的配置 .................................................................................. 57
7.1.3 DDR 数据线 map 关系的配置 ............................................................... 58
7.1.4 DDR 测试命令（uboot cmd line 下执行） ............................................ 60
7.2 分区 .............................................................................................................. 60
7.2.1 分区配置说明 ........................................................................................ 60
VashtaNerada2023-07-29这份文件准确地介绍了Android P的应用开发步骤，非常实用。
航知道2023-07-29这份文件对于解决常见问题提供了简明的指导，非常方便。
挽挽深铃2023-07-29综合来看，这份文件内容丰富，对于想要了解和使用Amlogic SDK的人来说是必备的参考资料。
MsingD2023-07-29文件内容清晰易懂，让人能够快速上手使用Amlogic SDK进行开发。
学习呀三木2023-07-29这份文件很详细，涵盖了Amlogic SDK的使用指南，对于开发者来说非常有用。
